Common excavators are driven by internal combustion engine and electric drive excavators. Among them, electric excavators are mainly used in plateau anoxic and underground mines and other flammable and explosive places.
According to size, excavators can be divided into large excavators, medium excavators and small excavators.
According to the different ways of walking, excavators can be divided into Caterpillar Excavators and wheel excavators.
According to the different transmission modes, excavators can be divided into hydraulic excavators and mechanical excavators. Mechanical excavators are mainly used in some large mines.

According to the use, excavators can be divided into general excavators, mining excavators, marine excavators, special excavators and other different categories.

According to the bucket, excavators can be divided into forward shovel Excavator, back shovel excavator, pull shovel excavator and grab shovel excavator. Forward shovel excavators are mostly used to excavate materials above the surface, while backhoe excavators are mostly used to excavate materials below the surface.

1. Backhoe Excavator Backhoe is the most common, backward down, forced earth cutting. It can be used for excavation below the stopping working surface. The basic working methods include ditch end excavation, ditch side excavation, straight line excavation, curve excavation, keeping a certain angle excavation, ultra-deep ditch excavation and ditch slope excavation.

2. Forward shovel excavator

The shovel action form of forward shovel excavator. It is characterized by "moving upward and forcibly cutting soil". The front shovel has a large excavating force and can excavate the soil above the stopping surface. It is suitable for excavating the dry foundation pit with a height of more than 2m, but the upper and lower ramps should be set up. The bucket of the front shovel is larger than the bucket of the backhoe of the same amount, and the excavatable water content is less than one of 27%.

To the third kind of soil, and dump truck with the completion of the entire excavation and transportation operations, but also excavate large-scale dry foundation pits and mounds. According to the difference of excavation route and relative position of transportation vehicle, there are two ways of excavation and unloading: forward excavation and lateral unloading; forward excavation and reverse unloading.

Position	Description	Standard parameter
A	Maximum Ground Digging Distance	9,810mm
A*	Maximum Horizontal Digging Distance	9,699mm
B	Maximum Cutting Height	9,616mm
C	Maximum Vertical Digging Depth	5,929mm
D	Maximum Digging Depth	6,411mm
E	Maximum Turning Radius	3,000mm

Position	Description	Parameters Of Standard Boom
A	Undercarriage Length	8,500mm
B	Counterweight Ground Clearance	2,035mm
C	Overall Height (to the top of the cab)	3,990mm
D	Overall Height (to the top of the boom)	3,970mm
E	Overall Length	1,1712mm
F	Tail Turning Radius	2,794mm
G	Track Gauge	3,500mm
H	Overall Width	5,400mm
I	Pontoon Width	1,500mm
J	Minimum Ground Clearance	1,170mm
K	Pontoon Height	1,840mm
L	Cab Width	2,990mm
M	Pontoon Grounded Length 5151mm	5,150mm

Plain marshland management and low-yield land reconstruction,water diversion projects and saline-alkali land, reconstruction and urban water supply projects; beach treatment and sea-related engineering ,shallow sea oil and gas well location engineering ,tailings, photovoltaic engineering,reclamation,dredging.Excavation,dredging,slope repairing,embankment,drainage pipe erection,flood control and rescue in dredging.

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